33633

Appears in sequences

• Numbers having four 3's in base 10.at n=29A043504
• Palindromes expressible as the sum of 3 consecutive palindromes.at n=26A046498
• Larger of Smith brothers.at n=17A050220
• Palindromes arising in A053779.at n=5A053780
• Numbers n for which there are exactly twelve k such that n = k + reverse(k).at n=32A072435
• Palindromes in A082939.at n=25A082940
• a(1) = 2; then least palindrome greater than the previous term such that every partial concatenation is a prime.at n=15A088084
• Palindromic Smith numbers.at n=19A098834
• Numbers n with digits 3 and 6 only.at n=34A284633
• Numbers k such that sopfr(k) = tau(k)^2.at n=24A305026
• a(n) = 3*(10^(2n+1)-1)/9 + 3*10^n.at n=2A332136
• Indices of records in A210693.at n=24A391871